M-system MDP-200T User manual

Brand: M-system

Model: MDP-200T

Type: User manual

MDP-200T

P. 1 / 3

EM-8227

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN

Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: info@m-system.co.jp

LIGHTNING SURGE PROTECTOR FOR

PHOTOVOLTAIC SYSTEM, INSTRUMENT SHELTER

MODEL

MDP-200T

INSTRUCTION MANUAL

BEFORE USE ....

Thank you for choosing M-System. Before use, please check

contents of the package you received as outlined below.

If you have any problems or questions with the product,

please contact M-System’s Sales Ofﬁce or representatives.

■ PACKAGE INCLUDES:

Surge protector ............................................................. (1)

DIN rail mounting adaptor* ........................................ (1)

Screws for mounting (M4 × 8)* .................................... (2)

*Included with option code /A33

■ MODEL NO.

Conﬁrm that the model number described on the product is

exactly what you ordered.

■ INSTRUCTION MANUAL

This manual describes necessary points of caution when

you use this product, including installation, connection and

basic maintenance procedures.

LIMITATION APPLICABLE TO M-RESTER

The M-Rester will protect electronics equipment from

damage caused by lightning by absorbing most of the

surge voltages.

However, M-Rester may not be effective against certain

extremely high voltages caused by a direct or almost di-

rect hit by lightning.

M-Rester must be installed according to this installation

/ instruction manual.

GENERAL

■ FUNCTION & FEATURES

•DesignedforACandspecicallyforDCpowersuppliesup

to 1 amp.

•Benecial for protectinginstruments from counter elec-

tromotive force by inductors and of course normal light-

ning surges entering from power supply lines.

•1Afuseincorporatedinelementcircuit.

■ SPECIFICATIONS

LINE TO LINE LINE TO EARTH

Max. line voltage (Uc)

250V AC

350V DC

----

Discharge voltage 410V min 410V min

Voltage protection level

(Up) 800V max 800V max

Leakage current

≤0.15mA

@300V DC

≤0.15mA

@300V DC

Response time ≤0.1 microsecond

Max. discharge current

(Imax)

1000A (8 / 20 µs)

Nominal current (I

N) 1.0A

Internal series resistance ≤0.4Ω including return

Dielectric strength of the

base module

1500V AC @1 minute

(G terminal to other terminals)

POINTS OF CAUTION

■ ENVIRONMENT

•Whenheavydustormetalparticlesarepresentintheair,

install the surge protector inside proper housing with suf-

ﬁcient ventilation.

•Donotinstallthesurgeprotectorwhereitissubjectedto

continuousvibration.Donotsubjecttheunittophysical

impact.

•Environmentaltemperaturemustbewithin-20to+80°C

(-4to176°F)withrelativehumiditywithin30to90%RH

in order to ensure adequate life span and operation.

■ DIELECTRIC STRENGTH TEST

•Loosenthescrewlocatedattheleft-centeroftheelement

and remove the element module from the base before

conducting a dielectric strength testing. Otherwise the

element will start discharging at a voltage exceeding the

max. continuous operating voltage (Uc), which can cause

insulation failure of the module.

Be sure to return the element and fasten securely after

the test.

■ AND ....

•We recommend that you keep spare surge protectors so

that you can replace them when necessary.

•Lightning surge can enter notonly throughsignal lines

butalsothroughpowersupplylines.Werecommendthat

you also use the surge protectors for power line for suf-

ﬁcient protection.

COMPONENT IDENTIFICATION

M•RESTER

Ground Terminal (G)

(used as mounting bracket)

Head Element

Base

Specifications

Head Element is secured to Base

with screw when the surge protector

is shipped from Factory.

MDP-200T

P. 2 / 3

EM-8227

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN

Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: info@m-system.co.jp

INSTALLATION

In order to separate the head element from the base, loosen the screw located at the left-center of the element.

■ DIN RAIL MOUNTING

1. MOUNTING ONTO THE ADAPTOR

Before DIN rail mounting, secure the mounting bracket of

MDP to the mounting adaptor with a screw provided with

this product. In this step, secure at one point.

DIN Rail Mounting Adaptor

M•RESTER

2. DIN RAIL MOUNTING

Set the base socket so that its mounting slider is at the bot-

tom. Position the upper hook at the rear side of base socket

ontheDINrailandpushinthelower.Whenremovingthe

socket, push down the mounting slider utilizing a minus

screwdriver and pull.

DIN Rail Mounting Slider

35 mm wide

DIN Rail

■ WALL MOUNTING

Refer to the drawings below.

• EXTERNAL DIMENSIONS unit: mm (inch)

P–P+

S–S+

23.5 (.93)

80 (3.15)

2–5 (.20) dia.

MTG HOLE

90 (3.54)

100 (3.94)

4–M4 TERMINAL SCREW

GROUND TERMINAL (G)

(used as mounting bracket)

27 (1.06)53 (2.09)

80 (3.15)

45 (1.77)

HEAD ELEMENT

BASE

3. GROUNDING

Secure the mounting bracket at the other point with the

other screw. In this step, secure the grounding wire togeth-

er with the screw.

Solderless Terminal

M•RESTER

• MOUNTING REQUIREMENTS

unit: mm (inch)

25 (.97) MIN.

2–M4 SCREW

90 (3.54)

• MOUNTING REQUIREMENTS unit: mm (inch)

8.5

(.33)

[3.3 (.13)]

DIN RAIL

35mm wide

80 (3.15)

45 (1.77)

(.18)

MDP-200T

P. 3 / 3

EM-8227

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN

Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: info@m-system.co.jp

MAINTENANCE

Check surge protectors periodically. Many cases of lightning are ignored, and even lightning at a far distance often causes

inductive surges.

Werecommendthatyoucheckyoursurgeprotectorabouttwiceayear,beforeandaftertherainyseason.Checkwhenever

you experience a strong lightning occurrence.

Checking procedure is explained in the following:

■ CHECKING

WIRING

1) Make sure that wiring is done as instructed in the connection diagram.

2) Make sure that the Ground terminal (G) is connected to the metallic housing of protected equipment.

3) Make sure that the Ground terminal (G) is grounded to earth.

DISCHARGE FUNCTION

The M-Rester Tester is available for checking the element module of this surge protector.

If you do not have one, approximate checking can be conducted as following.

1) Remove all wiring connected to the surge protector when you test the element module.

2) Check resistance across the following terminals on the high resistance range of multimeter and conﬁrm no conduction.

The meter shows the same value as it will show when these terminals are open.

Terminals (S1) – (S2), (P1) – (P2)

3) Check that discharging occurs across the following terminals with a 500V DC 1000MΩ insulation tester. (The tester shows

≤20MΩ.)

Terminals (S1) – (S2), (S1) – (G), (S2) – (G)

If any of the above tests shows negative, replace the protector.

TERMINAL CONNECTION

Connect the unit as in the diagram below.

Be sure to cross-wire between the Ground terminal (G) and that of the protected equipment.

M-RESTER

PROTECTED

EQUIPMENT

CROSSOVER WIRE

GROUNDING

(100 ohms or less)

A crossover wire between M-RESTER ground and the ground or

metallic housing of the equipment is required for protection.

If the protected equipment has no ground terminal, ground the

M-RESTER only.

■ GROUNDING

M-RESTER

Relay,

Coil, etc.

Discharge

Element

M-RESTER

Discharge

Element

CONTROL ROOM

FIELD

The M-Resters must be connected with its terminals S1 and S2 faced on power source side

in order that the fuses would be blown in case of shortcircuit of the discharge element.

M-system MDP-200T User manual

M-system MDP-200T User manual

M-system MDP-200T User manual

Related papers

Other documents